Electrical Supply & Installation

01. The required supply capacity for EE Microwave sites is 7.4kW, Single Phase.
02. For exact details of required electrical switchgear and associated connections, refer to site-specific electrical schematic and construction details.
03. The contractor is to ensure that a suitably protected distribution board is the exact location of any proposed circuit breaker is to be clearly identified on the relevant site plan.
04. It is the responsibility of the principal contractor to inform the designer of any changes that are deemed necessary prior to commencement of works.
05. The electrical contractor must bring to the designer's attention any discrepancies or omissions from the electrical design that are in accordance with BS7671:2018 Requirements for Electrical Installations.
06. The sub-main cable shall be clearly labelled throughout its route at 5-metre intervals, or at every floor level. The cable shall be clearly identified 'EE' Microsoft supply.
07. Every electrical joint and connection shall be of proper construction as regards conductance, insulation, mechanical strength and protection.
08. All conductors shall be clearly identified in accordance with section 514 of BS7671:2018 (Requirements for Electrical Installations).
09. Cable entry into enclosures shall be in accordance with manufacturer's specifications and recommendations, otherwise cable entry shall be from below. All holes shall be sealed to prevent dust and moisture ingress. All armoured cables shall be fitted with a correctly fitting cable gland sleeve.
10. All electric cables are to be clipped direct unless otherwise stated on the relevant drawing. Clamps are to be installed at 375mm vertical (vertically) and 350mm centres (horizontally).
11. All holes are to be sealed and made good upon installation of waterproofer cables. All floor voids shall be filled with an approved intumescent material or product.

Cable Management

1. Where necessary, bends in cable management, are to be installed in accordance with the feeder cable manufacturer's minimum bend radius recommendations. For details of feeder cable type, refer to the specific 'Feeder Map'.

Lightning Protection & Earthing

1. All earthing is to comply with the following British Standards: BS7671:2018 (Code of practice for earthing), BS7671:2018 (Requirements for electrical installations).
2. In each installation main equipotential bonding conductors complying with section 517 of BS7671 shall connect to the main earthing terminal, external and conductive parts of that installation including the following:
   - Water service pipes
   - Gas installation pipes
   - Other service pipes and ducting
   - Heating and air-conditioning systems
   - External metallic structural parts of the building
   - The lightning protective system
3. All sections of metallic cable management are to be earthed at every joint using copper braid bonds (fixed using manufacturer's pre-fabricated straps and wire fittings).
4. The cable management is to be tested at the wall and centre for a resistance not exceeding 1 ohm or less.

General Installation Notes

1. The main contractor is to supply and install all those items of new works and alterations shown on the contract drawings as being in his supply, including 'free issue' items from the client, as described and listed within the contract.
2. All permanent and temporary safety works are to be in place prior to the commencement of the proposed construction works.
3. The main contractor is responsible for the design, maintenance and removal of all temporary works.
4. The site is to be left in a clean and workmanlike manner upon completion of the works and is to be suitably maintained during the progress of the works. All surplus or redundant materials and waste shall be removed from site and disposed of at approved waste management centres.
5. This drawing is to be read in conjunction with Shire Consulting electrical and structural detailed design drawings.

REFERENCE DRAWINGS

For Reference Drawing List, See Doc. No. SP/DBY7571/R/101

LEGEND

EE Equipment Feeder Cables Radiating Feeder Cables Cable Management Electrical Cables Earthing BT Equipment/Cabling Electrical Switchgear CAT 5/6 type cable Fibre Optic cable Photograph Direction Equipment Elevation Direction

(Colours on this drawing represent proposed equipment)

SECTION 2-2

SG001A SWIVEL MOUNT PANEL ANTENNA FIXING DETAILS (1 No. REQUIRED)

Scale: 1:10

AL03008 PANEL ANTENNA C/W PAN AND TILT BRACKET FIXING DETAILS (ANTENNAE A3, A4 & A5)

Scale: 1:10

JB0002A DOME ANTENNA FIXED TO CEILING (1 No. REQUIRED)

Scale: 1:5

APPROVAL / CONSTRUCTION ISSUE

ELECTRICAL NOTES/ ANTENNAE FIXING DETAILS

3G/3G ROLLOUT IN-BUILDING MICROCELL MARSHALLS NATLOCK

SP/DBY7571/R/111